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Detection of targets in continuous random media: A numerical study using the angular correlation function
Author(s) -
Moss C. D.,
Teixeira F. L.,
Kong J. A.
Publication year - 2002
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10287
Subject(s) - finite difference time domain method , clutter , microwave , radar cross section , correlation function (quantum field theory) , radar , function (biology) , optics , object (grammar) , physics , microwave imaging , acoustics , computer science , mathematics , algorithm , statistics , telecommunications , artificial intelligence , spectral density , evolutionary biology , biology
A three‐dimensional (3D) finite‐difference–time‐domain (FDTD) scheme is used to study the angular correlation function (ACF) of the scattered fields from continuous random media (volume) with and without a target object present. The FDTD simulations are employed to examine the effectiveness of ACF for object detection in the presence of volumetric clutter. It is shown that the frequency‐averaged ACF can be as much as 10‐dB greater when a target object is present for situations where the target is undetectable by direct examination of the radar cross section only. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 242–247, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10287